Tested permutations of a sentence linking to a Twitter account, optimizing for click-through rate. Viewed by 5,000 visitors over 2 hours. As the forcefulness and personal identifiability of the phrase increased, the number of clicks likewise increased. The optimal sentence sued "You," identifying the reader directly, "should" implies an obligation, and "follow me on twitter" is a direct command. Moving the link to a literal callout "here" provides a clear location for clicking. Final optimal sentence: "You should follow me on Twitter here." Less effective sentences: "Follow me on Twitter" and "I'm on Twitter."

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